Scavenging amphipods in the high Arctic : Studies of benthic and sympagic amphipods in the genera Onisimus and Anonyx

• Main Author: Nygård, Henrik
• Format: Doctoral or Postdoctoral Thesis
• Language: English
• Published: Universitetet i Tromsø 2011
• Subjects: scavenging amphipods; Onisimus; life history; seasonality; feeding strategies; Arctic; VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497; VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497; Petersen; Gibba; Bjørn; Adventfjorden; Camus; Vihtakari; Sea ice
• Online Access: https://hdl.handle.net/10037/3382

The papers of the thesis are not available in Munin: 1. Henrik Nygård, Mikko Vihtakari and Jørgen Berge:'Life history of Onisimus caricus (Amphipoda: Lysianassoidea) in a high Arctic fjord', Aquatic Biology (2009) 5:63-74. (Publisher's restriction). Available at http://dx.doi.org/10.3354/ab00142 2. Henrik Nygård, Jago Wallenschus, Lionel Camus, Øystein Varpe and Jørgen Berge:'Annual routines and life history of the amphipod Onisimus litoralis: seasonal growth, body composition and energy budget',Marine Ecology Progress Series (2010) 417:115-126. (Publisher's restriction) Available at http//dx.doi.org/10.3354/meps08798 3. Marek Zajączkowski, Henrik Nygård, Else Nøst Hegseth and Jørgen Berge:'Vertical flux of particulate matter in an Arctic fjord: the case of lack of the sea-ice cover in Adventfjorden 2006-2007',Polar Biology (2010), 33:223-239. (Publisher's restriction). Available at http://dx.doi.org/10.1007/s00300-009-0699-x 4. Henrik Nygård, Jørgen Berge, Janne E. Søreide, Mikko Vihtakari and Stig Falk-Petersen:'The amphipod scavenging guild in two Arctic fjords: seasonal variations, abundance and trophic interactions' (manuscript). 5. Henrik Nygård, Jørgen Berge, Bjørn Gulliksen and Lionel Camus:'The occurrence of Eualus gaimardii gibba Krøyer 1841 (Crustacea, Decapoda) in the sympagic habitat: an example of bentho-sympagic coupling', Polar Biology (2007) 30:1351-1354. (Publisher's restriction). Available at http://dx.doi.org/10.1007/s00300-007-0302-2 The main objective of this study was to increase our knowledge about the ecology of scavenging amphipods, particularly amphipods within the genera Onisimus and Anonyx. Specifically, the emphasis was to increase the knowledge of ice-associated (sympagic) Onisimus-species, but as these species are rather inaccessible, an approach using benthic congeners as proxies was chosen. By studying the shallow-water scavenging amphipods, a high temporal resolution in sampling could be achieved, resulting in detailed descriptions of life cycles and reproduction parameters ...